6821519626412 has 24 divisors (see below), whose sum is σ = 12475941117696. Its totient is φ = 3257423428688.

The previous prime is 6821519626399. The next prime is 6821519626429. The reversal of 6821519626412 is 2146269151286.

It is a super-2 number, since 2×6821519626412² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57241058 + ... + 57360105.

It is an arithmetic number, because the mean of its divisors is an integer number (519830879904).

Almost surely, 2^{6821519626412} is an apocalyptic number.

It is an amenable number.

6821519626412 is a deficient number, since it is larger than the sum of its proper divisors (5654421491284).

6821519626412 is a wasteful number, since it uses less digits than its factorization.

6821519626412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114601837 (or 114601835 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 53.

The spelling of 6821519626412 in words is "six trillion, eight hundred twenty-one billion, five hundred nineteen million, six hundred twenty-six thousand, four hundred twelve".